1. Divisions of Epidemiology and of Environmental and Occupational Health, Department of Public Health Sciences, School of Medicine; University of California; Davis California
2. Medical Investigations of Neurodevelopmental Disorders Institute (MIND), University of California; Davis California
3. Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, School of Medicine; University of California; Davis California
4. Department of Pediatrics, School of Medicine; University of California; Davis California
5. Division of Rheumatology, Allergy and Clinical Immunology, Department of Internal Medicine, School of Medicine; University of California; Davis California